Year	% of population
2008	70.4126769122854
2009	71.5459795659153
2010	67.4839847852573
2011	64.6439639400137
2012	67.1146488801605
2013	71.1685039129024
2014	66.9816187621162
2015	81.0828135233985
2016	82.4608613891936
2017	79.8116342136767
2018	80.6550439655369
2019	79.3671304725903